Ketogenic Diets Not Worth It

Category: Diet and Nutrition

Many people who have been overweight or obese, have tried a ketogenic diet like the Atkins diet. Although, the initial results may have been favorable, for many, the long term results are not sustainable. More importantly though, is the fact that ketogenic diets are not advised for people with certain medical conditions, like type 1 diabetes, or those with weakened vitality. A new study published in the American Journal of Clinical Nutrition in May 2006 demonstrates that ketogenic diets are no more effective than other low carb diets, and the risk of adverse effects is much higher.

Researchers designed the study to compare the effects of ketogenic low carb diets with nonketogenic low fat, low carb diets, examining weight loss and metabolic effects. Food and beverages were provided over a six week period and participants did not exercise. After this feeding period, patients were instructed how to continue the specific diet for four weeks. Mood states, body weight and fat mass were assessed at the end of the 10 week trial, while weight and fat mass were taken every week. Blood and urine samples were also taken periodically. The results showed that both diets produced the same level of weight and fat loss, as well as changes in insulin sensitivity and resting energy expenditure. However, those following the ketogenic diet experienced higher measurable inflammatory risk and reduced vigor. Dietary compliance to the nonketogenic diet was also improved.

This study confirms that nonketogenic low-calorie, lower fat diets are superior to ketogenic type diets. These diets are difficult to comply with leading to poor long-term success rates and likely increased weight in the long run form "yo-yo" dieting. Even more detrimental is the inflammatory risk which can increase the risk of cardiovascular disease and certain neurological disorders.

Posted by Dr. Jennifer Stagg on January 23, 2014 10:00 AM